When multiple superscripts or subscripts are used in a text field, re-opening the saved dxf file will fail to render all but the first super/subscript element. As per attached example. Bug occurs on all Mac OS X from Mavericks onward.

Minimal reproducible steps:1. Open new document in QCAD2. Add a text object3. Make part of the text sub or super-script4. Make another part of the text also sub/superscript, with at least one ‘normal’ character between the two sub/superscripts5. Save file and close it. Don’t have to quit QCAD.6. Reopen the file. Voila, all but the first sub/superscript element is broken.